(1) In general The Attorney General may make grants to States and local law enforcement agencies to establish, develop, expand, or strengthen programs
(A) to investigate and prosecute acts of severe forms of trafficking in persons, and related offenses, which involve United States citizens, or aliens admitted for permanent residence, and that occur, in whole or in part, within the territorial jurisdiction of the United States;
(B) to investigate and prosecute persons who engage in the purchase of commercial sex acts;
(C) to educate persons charged with, or convicted of, purchasing or attempting to purchase commercial sex acts; and
(D) to educate and train law enforcement personnel in how to establish trust of persons subjected to trafficking and encourage cooperation with prosecution efforts.